GPT-5.6 Solves a Tough Problem
No-Head-Royal · reddit · 2026-07-10
A Reddit user ran a quick experiment: GPT-5.6 Sol successfully solved a Codeforces problem that Fable 5 had previously failed to crack.
The post notes:
- Fable 5 had previously devolved into hallucinating nonsense when tackling similar problems in the standard web interface.
- GPT-5.6 Sol xhigh solved it in a single attempt, taking about 13 minutes.
- GPT-5.5 xhigh also failed to solve the same problem.
- The author remarked that such results would have seemed like magic 5 years ago, but are now accessible within a $20/month subscription.
More from Models
- RoMa v2 image matching model unveiled in the usual black poster — ducha_aiki · 2026-09-11
- OpenAI rated Astra 'Critical' for cyber capabilities — and admits it's harder to monitor — theguywhobuilds · 2026-09-11
- TestingCatalog's Daily AI Brief adds email editions, dishing Meta Muse and GPT-Live-1 rumors — testingcatalog · 2026-09-11
- ChatGPT monthly active users top 1.06 billion in August, fourth straight record month — FinanceYF5 · 2026-09-11
- PuzzleMask: Plain-Prose Attack Bypasses All 4 Tested LLM Gatekeepers at 100% — TechNadu · 2026-09-11
- OpenAI Codex may issue another usage reset this weekend, says Codex lead resets happen — umesh_ai · 2026-09-11